Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

The remains of centuries of copper mining appear like an alien landscape.

Macabre astrological automaton clock dating to the late 1400s.

The house that took a plunge into the facade of a museum.

Museum devoted to the artificial language of Esperanto.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

Terrifying derelict military hospital once housed a recuperating Hitler.

A collection of abandoned typographic signs from Berlin and beyond.

A surreal museum of extraordinary industrial objects.

Fall down the rabbit hole into a surreal journey of human consciousness "from ass to soul."

Climb inside an iron crystal magnified 165 billion times its normal size.

Lavish royal estate punctuated with heated greenhouses.

A little sculpture with a large wardrobe.

The world's only museum devoted to the wonders of fluorescence.

“And the Lord said unto Johan, build for thee an ark for the end of the world is approaching.”

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Cat art as far as the eye can see.

Museum preserving torture methods from the past.

This ghost town in Belgium will lose its street art when it ceases to exist.

Invisible bridge parts the waters, invoking biblical images and preserving the ominous feel of an ancient moat.